Home / 13,565.80-18,718.64-7,597.72

Finding the Fourth Proportional to 13,565.80, 18,718.64 and 7,597.72

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Solution

The fourth proportional to 13,565.80, 18,718.64 and 7,597.72 is: 10,483.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,565.80 : 18,718.64 = 7,597.72 : x
  2. Step 2: Convert to fraction form
    13,565.80/18,718.64 = 7,597.72/x
  3. Step 3: Cross multiply
    13,565.80x = 18,718.64 × 7,597.72
  4. Step 4: Simplify right side
    13,565.80x = 142,218,985.50
  5. Step 5: Solve for x
    x = 142,218,985.50/13,565.80
  6. Step 6: Final answer
    x = 10,483.64

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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.