Home / 11,477.04-15,834.48-6,440.40

Finding the Fourth Proportional to 11,477.04, 15,834.48 and 6,440.40

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Solution

The fourth proportional to 11,477.04, 15,834.48 and 6,440.40 is: 8,885.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,477.04 : 15,834.48 = 6,440.40 : x
  2. Step 2: Convert to fraction form
    11,477.04/15,834.48 = 6,440.40/x
  3. Step 3: Cross multiply
    11,477.04x = 15,834.48 × 6,440.40
  4. Step 4: Simplify right side
    11,477.04x = 101,980,384.99
  5. Step 5: Solve for x
    x = 101,980,384.99/11,477.04
  6. Step 6: Final answer
    x = 8,885.60

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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.