Home / 10,913.51-15,062.36-6,437.76

Finding the Fourth Proportional to 10,913.51, 15,062.36 and 6,437.76

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Solution

The fourth proportional to 10,913.51, 15,062.36 and 6,437.76 is: 8,885.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,913.51 : 15,062.36 = 6,437.76 : x
  2. Step 2: Convert to fraction form
    10,913.51/15,062.36 = 6,437.76/x
  3. Step 3: Cross multiply
    10,913.51x = 15,062.36 × 6,437.76
  4. Step 4: Simplify right side
    10,913.51x = 96,967,826.52
  5. Step 5: Solve for x
    x = 96,967,826.52/10,913.51
  6. Step 6: Final answer
    x = 8,885.12

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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.