Home / 9,913.29-13,680.34-5,437.07

Finding the Fourth Proportional to 9,913.29, 13,680.34 and 5,437.07

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Solution

The fourth proportional to 9,913.29, 13,680.34 and 5,437.07 is: 7,503.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,913.29 : 13,680.34 = 5,437.07 : x
  2. Step 2: Convert to fraction form
    9,913.29/13,680.34 = 5,437.07/x
  3. Step 3: Cross multiply
    9,913.29x = 13,680.34 × 5,437.07
  4. Step 4: Simplify right side
    9,913.29x = 74,381,043.05
  5. Step 5: Solve for x
    x = 74,381,043.05/9,913.29
  6. Step 6: Final answer
    x = 7,503.17

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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.