Home / 19,578.16-27,018.12-10,625.77

Finding the Fourth Proportional to 19,578.16, 27,018.12 and 10,625.77

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Solution

The fourth proportional to 19,578.16, 27,018.12 and 10,625.77 is: 14,663.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,578.16 : 27,018.12 = 10,625.77 : x
  2. Step 2: Convert to fraction form
    19,578.16/27,018.12 = 10,625.77/x
  3. Step 3: Cross multiply
    19,578.16x = 27,018.12 × 10,625.77
  4. Step 4: Simplify right side
    19,578.16x = 287,088,328.95
  5. Step 5: Solve for x
    x = 287,088,328.95/19,578.16
  6. Step 6: Final answer
    x = 14,663.70

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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.