Home / 14,587.20-20,109.60-10,382.40

Finding the Fourth Proportional to 14,587.20, 20,109.60 and 10,382.40

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Solution

The fourth proportional to 14,587.20, 20,109.60 and 10,382.40 is: 14,312.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,587.20 : 20,109.60 = 10,382.40 : x
  2. Step 2: Convert to fraction form
    14,587.20/20,109.60 = 10,382.40/x
  3. Step 3: Cross multiply
    14,587.20x = 20,109.60 × 10,382.40
  4. Step 4: Simplify right side
    14,587.20x = 208,785,911.04
  5. Step 5: Solve for x
    x = 208,785,911.04/14,587.20
  6. Step 6: Final answer
    x = 14,312.95

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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.