Home / 14,985.24-20,685.54-9,015.74

Finding the Fourth Proportional to 14,985.24, 20,685.54 and 9,015.74

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Solution

The fourth proportional to 14,985.24, 20,685.54 and 9,015.74 is: 12,445.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,985.24 : 20,685.54 = 9,015.74 : x
  2. Step 2: Convert to fraction form
    14,985.24/20,685.54 = 9,015.74/x
  3. Step 3: Cross multiply
    14,985.24x = 20,685.54 × 9,015.74
  4. Step 4: Simplify right side
    14,985.24x = 186,495,450.40
  5. Step 5: Solve for x
    x = 186,495,450.40/14,985.24
  6. Step 6: Final answer
    x = 12,445.28

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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.