Home / 15,345.02-21,172.92-9,056.18

Finding the Fourth Proportional to 15,345.02, 21,172.92 and 9,056.18

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Solution

The fourth proportional to 15,345.02, 21,172.92 and 9,056.18 is: 12,495.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,345.02 : 21,172.92 = 9,056.18 : x
  2. Step 2: Convert to fraction form
    15,345.02/21,172.92 = 9,056.18/x
  3. Step 3: Cross multiply
    15,345.02x = 21,172.92 × 9,056.18
  4. Step 4: Simplify right side
    15,345.02x = 191,745,774.65
  5. Step 5: Solve for x
    x = 191,745,774.65/15,345.02
  6. Step 6: Final answer
    x = 12,495.64

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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.