Home / 7,111.17-9,807.51-5,339.70

Finding the Fourth Proportional to 7,111.17, 9,807.51 and 5,339.70

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Solution

The fourth proportional to 7,111.17, 9,807.51 and 5,339.70 is: 7,364.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,111.17 : 9,807.51 = 5,339.70 : x
  2. Step 2: Convert to fraction form
    7,111.17/9,807.51 = 5,339.70/x
  3. Step 3: Cross multiply
    7,111.17x = 9,807.51 × 5,339.70
  4. Step 4: Simplify right side
    7,111.17x = 52,369,161.15
  5. Step 5: Solve for x
    x = 52,369,161.15/7,111.17
  6. Step 6: Final answer
    x = 7,364.35

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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.