Home / 15,621.52-21,557.66-8,547.93

Finding the Fourth Proportional to 15,621.52, 21,557.66 and 8,547.93

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Solution

The fourth proportional to 15,621.52, 21,557.66 and 8,547.93 is: 11,796.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,621.52 : 21,557.66 = 8,547.93 : x
  2. Step 2: Convert to fraction form
    15,621.52/21,557.66 = 8,547.93/x
  3. Step 3: Cross multiply
    15,621.52x = 21,557.66 × 8,547.93
  4. Step 4: Simplify right side
    15,621.52x = 184,273,368.64
  5. Step 5: Solve for x
    x = 184,273,368.64/15,621.52
  6. Step 6: Final answer
    x = 11,796.12

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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.