Home / 9,887.60-13,642.08-5,695.04

Finding the Fourth Proportional to 9,887.60, 13,642.08 and 5,695.04

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Solution

The fourth proportional to 9,887.60, 13,642.08 and 5,695.04 is: 7,857.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,887.60 : 13,642.08 = 5,695.04 : x
  2. Step 2: Convert to fraction form
    9,887.60/13,642.08 = 5,695.04/x
  3. Step 3: Cross multiply
    9,887.60x = 13,642.08 × 5,695.04
  4. Step 4: Simplify right side
    9,887.60x = 77,692,191.28
  5. Step 5: Solve for x
    x = 77,692,191.28/9,887.60
  6. Step 6: Final answer
    x = 7,857.54

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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.