Home / 13,565.79-18,728.24-9,322.95

Finding the Fourth Proportional to 13,565.79, 18,728.24 and 9,322.95

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Solution

The fourth proportional to 13,565.79, 18,728.24 and 9,322.95 is: 12,870.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,565.79 : 18,728.24 = 9,322.95 : x
  2. Step 2: Convert to fraction form
    13,565.79/18,728.24 = 9,322.95/x
  3. Step 3: Cross multiply
    13,565.79x = 18,728.24 × 9,322.95
  4. Step 4: Simplify right side
    13,565.79x = 174,602,398.49
  5. Step 5: Solve for x
    x = 174,602,398.49/13,565.79
  6. Step 6: Final answer
    x = 12,870.79

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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.