Home / 9,521.19-14,284.13-7,688.91

Finding the Fourth Proportional to 9,521.19, 14,284.13 and 7,688.91

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Solution

The fourth proportional to 9,521.19, 14,284.13 and 7,688.91 is: 11,535.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,521.19 : 14,284.13 = 7,688.91 : x
  2. Step 2: Convert to fraction form
    9,521.19/14,284.13 = 7,688.91/x
  3. Step 3: Cross multiply
    9,521.19x = 14,284.13 × 7,688.91
  4. Step 4: Simplify right side
    9,521.19x = 109,829,351.55
  5. Step 5: Solve for x
    x = 109,829,351.55/9,521.19
  6. Step 6: Final answer
    x = 11,535.25

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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.