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Finding the Fourth Proportional to 12,547, 18,883.45 and 9,443.08

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Solution

The fourth proportional to 12,547, 18,883.45 and 9,443.08 is: 14,212.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,547 : 18,883.45 = 9,443.08 : x
  2. Step 2: Convert to fraction form
    12,547/18,883.45 = 9,443.08/x
  3. Step 3: Cross multiply
    12,547x = 18,883.45 × 9,443.08
  4. Step 4: Simplify right side
    12,547x = 178,317,929.03
  5. Step 5: Solve for x
    x = 178,317,929.03/12,547
  6. Step 6: Final answer
    x = 14,212.00

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.