Home / 10,987.02-15,159.69-6,508.53

Finding the Fourth Proportional to 10,987.02, 15,159.69 and 6,508.53

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Solution

The fourth proportional to 10,987.02, 15,159.69 and 6,508.53 is: 8,980.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,987.02 : 15,159.69 = 6,508.53 : x
  2. Step 2: Convert to fraction form
    10,987.02/15,159.69 = 6,508.53/x
  3. Step 3: Cross multiply
    10,987.02x = 15,159.69 × 6,508.53
  4. Step 4: Simplify right side
    10,987.02x = 98,667,297.16
  5. Step 5: Solve for x
    x = 98,667,297.16/10,987.02
  6. Step 6: Final answer
    x = 8,980.35

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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.