Home / 13,309.86-18,368.90-9,946.84

Finding the Fourth Proportional to 13,309.86, 18,368.90 and 9,946.84

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Solution

The fourth proportional to 13,309.86, 18,368.90 and 9,946.84 is: 13,727.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,309.86 : 18,368.90 = 9,946.84 : x
  2. Step 2: Convert to fraction form
    13,309.86/18,368.90 = 9,946.84/x
  3. Step 3: Cross multiply
    13,309.86x = 18,368.90 × 9,946.84
  4. Step 4: Simplify right side
    13,309.86x = 182,712,482.50
  5. Step 5: Solve for x
    x = 182,712,482.50/13,309.86
  6. Step 6: Final answer
    x = 13,727.60

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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.