Home / 10,877.19-16,289.05-5,312.59

Finding the Fourth Proportional to 10,877.19, 16,289.05 and 5,312.59

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Solution

The fourth proportional to 10,877.19, 16,289.05 and 5,312.59 is: 7,955.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,877.19 : 16,289.05 = 5,312.59 : x
  2. Step 2: Convert to fraction form
    10,877.19/16,289.05 = 5,312.59/x
  3. Step 3: Cross multiply
    10,877.19x = 16,289.05 × 5,312.59
  4. Step 4: Simplify right side
    10,877.19x = 86,537,000.10
  5. Step 5: Solve for x
    x = 86,537,000.10/10,877.19
  6. Step 6: Final answer
    x = 7,955.83

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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.