Home / 12,783.60-19,177.29-6,547.14

Finding the Fourth Proportional to 12,783.60, 19,177.29 and 6,547.14

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Solution

The fourth proportional to 12,783.60, 19,177.29 and 6,547.14 is: 9,821.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,783.60 : 19,177.29 = 6,547.14 : x
  2. Step 2: Convert to fraction form
    12,783.60/19,177.29 = 6,547.14/x
  3. Step 3: Cross multiply
    12,783.60x = 19,177.29 × 6,547.14
  4. Step 4: Simplify right side
    12,783.60x = 125,556,402.45
  5. Step 5: Solve for x
    x = 125,556,402.45/12,783.60
  6. Step 6: Final answer
    x = 9,821.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.