Home / 9,815.34-13,545.28-5,339.11

Finding the Fourth Proportional to 9,815.34, 13,545.28 and 5,339.11

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Solution

The fourth proportional to 9,815.34, 13,545.28 and 5,339.11 is: 7,368.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,815.34 : 13,545.28 = 5,339.11 : x
  2. Step 2: Convert to fraction form
    9,815.34/13,545.28 = 5,339.11/x
  3. Step 3: Cross multiply
    9,815.34x = 13,545.28 × 5,339.11
  4. Step 4: Simplify right side
    9,815.34x = 72,319,672.17
  5. Step 5: Solve for x
    x = 72,319,672.17/9,815.34
  6. Step 6: Final answer
    x = 7,368.03

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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.