Home / 12,316.90-16,993.10-7,010.40

Finding the Fourth Proportional to 12,316.90, 16,993.10 and 7,010.40

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Solution

The fourth proportional to 12,316.90, 16,993.10 and 7,010.40 is: 9,671.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,316.90 : 16,993.10 = 7,010.40 : x
  2. Step 2: Convert to fraction form
    12,316.90/16,993.10 = 7,010.40/x
  3. Step 3: Cross multiply
    12,316.90x = 16,993.10 × 7,010.40
  4. Step 4: Simplify right side
    12,316.90x = 119,128,428.24
  5. Step 5: Solve for x
    x = 119,128,428.24/12,316.90
  6. Step 6: Final answer
    x = 9,671.95

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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.