Home / 10,511.56-14,508.48-6,319

Finding the Fourth Proportional to 10,511.56, 14,508.48 and 6,319

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Solution

The fourth proportional to 10,511.56, 14,508.48 and 6,319 is: 8,721.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,511.56 : 14,508.48 = 6,319 : x
  2. Step 2: Convert to fraction form
    10,511.56/14,508.48 = 6,319/x
  3. Step 3: Cross multiply
    10,511.56x = 14,508.48 × 6,319
  4. Step 4: Simplify right side
    10,511.56x = 91,679,085.12
  5. Step 5: Solve for x
    x = 91,679,085.12/10,511.56
  6. Step 6: Final answer
    x = 8,721.74

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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.