Home / 12,875.60-19,300.26-7,317.20

Finding the Fourth Proportional to 12,875.60, 19,300.26 and 7,317.20

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Solution

The fourth proportional to 12,875.60, 19,300.26 and 7,317.20 is: 10,968.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,875.60 : 19,300.26 = 7,317.20 : x
  2. Step 2: Convert to fraction form
    12,875.60/19,300.26 = 7,317.20/x
  3. Step 3: Cross multiply
    12,875.60x = 19,300.26 × 7,317.20
  4. Step 4: Simplify right side
    12,875.60x = 141,223,862.47
  5. Step 5: Solve for x
    x = 141,223,862.47/12,875.60
  6. Step 6: Final answer
    x = 10,968.33

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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.