Home / 10,088.08-13,920.60-9,345.04

Finding the Fourth Proportional to 10,088.08, 13,920.60 and 9,345.04

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Solution

The fourth proportional to 10,088.08, 13,920.60 and 9,345.04 is: 12,895.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,088.08 : 13,920.60 = 9,345.04 : x
  2. Step 2: Convert to fraction form
    10,088.08/13,920.60 = 9,345.04/x
  3. Step 3: Cross multiply
    10,088.08x = 13,920.60 × 9,345.04
  4. Step 4: Simplify right side
    10,088.08x = 130,088,563.82
  5. Step 5: Solve for x
    x = 130,088,563.82/10,088.08
  6. Step 6: Final answer
    x = 12,895.27

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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.