Home / 12,316.28-16,994.50-7,011.20

Finding the Fourth Proportional to 12,316.28, 16,994.50 and 7,011.20

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Solution

The fourth proportional to 12,316.28, 16,994.50 and 7,011.20 is: 9,674.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,316.28 : 16,994.50 = 7,011.20 : x
  2. Step 2: Convert to fraction form
    12,316.28/16,994.50 = 7,011.20/x
  3. Step 3: Cross multiply
    12,316.28x = 16,994.50 × 7,011.20
  4. Step 4: Simplify right side
    12,316.28x = 119,151,838.40
  5. Step 5: Solve for x
    x = 119,151,838.40/12,316.28
  6. Step 6: Final answer
    x = 9,674.34

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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.