Home / 7,136.28-10,688.10-6,005.40

Finding the Fourth Proportional to 7,136.28, 10,688.10 and 6,005.40

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Solution

The fourth proportional to 7,136.28, 10,688.10 and 6,005.40 is: 8,994.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,136.28 : 10,688.10 = 6,005.40 : x
  2. Step 2: Convert to fraction form
    7,136.28/10,688.10 = 6,005.40/x
  3. Step 3: Cross multiply
    7,136.28x = 10,688.10 × 6,005.40
  4. Step 4: Simplify right side
    7,136.28x = 64,186,315.74
  5. Step 5: Solve for x
    x = 64,186,315.74/7,136.28
  6. Step 6: Final answer
    x = 8,994.37

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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.