Home / 12,888.18-19,420.08-10,599.47

Finding the Fourth Proportional to 12,888.18, 19,420.08 and 10,599.47

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Solution

The fourth proportional to 12,888.18, 19,420.08 and 10,599.47 is: 15,971.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,888.18 : 19,420.08 = 10,599.47 : x
  2. Step 2: Convert to fraction form
    12,888.18/19,420.08 = 10,599.47/x
  3. Step 3: Cross multiply
    12,888.18x = 19,420.08 × 10,599.47
  4. Step 4: Simplify right side
    12,888.18x = 205,842,458.26
  5. Step 5: Solve for x
    x = 205,842,458.26/12,888.18
  6. Step 6: Final answer
    x = 15,971.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.