Home / 13,624.02-18,802.51-9,157.07

Finding the Fourth Proportional to 13,624.02, 18,802.51 and 9,157.07

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Solution

The fourth proportional to 13,624.02, 18,802.51 and 9,157.07 is: 12,637.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,624.02 : 18,802.51 = 9,157.07 : x
  2. Step 2: Convert to fraction form
    13,624.02/18,802.51 = 9,157.07/x
  3. Step 3: Cross multiply
    13,624.02x = 18,802.51 × 9,157.07
  4. Step 4: Simplify right side
    13,624.02x = 172,175,900.25
  5. Step 5: Solve for x
    x = 172,175,900.25/13,624.02
  6. Step 6: Final answer
    x = 12,637.67

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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.