Home / 13,155.48-19,693.80-9,695.16

Finding the Fourth Proportional to 13,155.48, 19,693.80 and 9,695.16

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Solution

The fourth proportional to 13,155.48, 19,693.80 and 9,695.16 is: 14,513.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,155.48 : 19,693.80 = 9,695.16 : x
  2. Step 2: Convert to fraction form
    13,155.48/19,693.80 = 9,695.16/x
  3. Step 3: Cross multiply
    13,155.48x = 19,693.80 × 9,695.16
  4. Step 4: Simplify right side
    13,155.48x = 190,934,542.01
  5. Step 5: Solve for x
    x = 190,934,542.01/13,155.48
  6. Step 6: Final answer
    x = 14,513.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.