Home / 10,528.08-14,530.62-6,279.40

Finding the Fourth Proportional to 10,528.08, 14,530.62 and 6,279.40

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Solution

The fourth proportional to 10,528.08, 14,530.62 and 6,279.40 is: 8,666.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,528.08 : 14,530.62 = 6,279.40 : x
  2. Step 2: Convert to fraction form
    10,528.08/14,530.62 = 6,279.40/x
  3. Step 3: Cross multiply
    10,528.08x = 14,530.62 × 6,279.40
  4. Step 4: Simplify right side
    10,528.08x = 91,243,575.23
  5. Step 5: Solve for x
    x = 91,243,575.23/10,528.08
  6. Step 6: Final answer
    x = 8,666.69

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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.