Home / 17,377.98-23,981.40-9,420

Finding the Fourth Proportional to 17,377.98, 23,981.40 and 9,420

Calculator

Solution

The fourth proportional to 17,377.98, 23,981.40 and 9,420 is: 12,999.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,377.98 : 23,981.40 = 9,420 : x
  2. Step 2: Convert to fraction form
    17,377.98/23,981.40 = 9,420/x
  3. Step 3: Cross multiply
    17,377.98x = 23,981.40 × 9,420
  4. Step 4: Simplify right side
    17,377.98x = 225,904,788
  5. Step 5: Solve for x
    x = 225,904,788/17,377.98
  6. Step 6: Final answer
    x = 12,999.48

Related Problems

Find fourth proportional to 8,688.99, 11,990.70 and 4,710
Half scale
Find fourth proportional to 34,755.96, 47,962.80 and 18,840
Double scale
Find fourth proportional to 17,378.98, 23,982.78 and 9,421
Similar ratio
Find fourth proportional to 26,066.97, 35,972.10 and 14,130
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.